I'm playing in one of the biggest maps available, and I'm having problems understanding how refineries work. Trade ports are pretty simple so no need to explain (also, they're giving me 110 credits/sec right now, w00t!!!) but refineries are a bit harder to understand.
I spent a lof of money building refineries on almost all of my planets (some planets got 2 refineries) and they're only pumping out a max of.... 8.2 metal/sec and 6.5 crystal/sec. Is that it? I don't know how much I spent to get these built and that's all they give? Did I do something wrong? How to know when to build a refinery? My planets give around 30 metal/sec and 20 crystal/sec... so they kick refineries' asses no problem.